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math/big: move exhaustive tests behind -long flag

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This way you can still run 'go test' or 'go bench -run Foo'
without wondering why it is taking so very long.

Change-Id: Icfa097a6deb1d6682acb7be9f34729215c29eabb
Reviewed-on: https://go-review.googlesource.com/30707
Reviewed-by: Robert Griesemer <gri@golang.org>
This commit is contained in:
Russ Cox 2016-10-10 16:44:53 -04:00
parent 2756d56c89
commit 9a8832f142
3 changed files with 14 additions and 11 deletions
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9
src/math/big/float_test.go
View file

@ -5,6 +5,7 @@
package big
import (
"flag"
"fmt"
"math"
"strconv"
@ -1495,12 +1496,14 @@ func TestFloatQuo(t *testing.T) {
}
}
var long = flag.Bool("long", false, "run very long tests")
// TestFloatQuoSmoke tests all divisions x/y for values x, y in the range [-n, +n];
// it serves as a smoke test for basic correctness of division.
func TestFloatQuoSmoke(t *testing.T) {
n := 1000
if testing.Short() {
n = 10
n := 10
if *long {
n = 1000
}
const dprec = 3 // max. precision variation

10
src/math/big/rat_test.go
View file

@ -382,9 +382,9 @@ func TestFloat32Distribution(t *testing.T) {
9,
11,
}
var winc, einc = uint64(1), 1 // soak test (~1.5s on x86-64)
var winc, einc = uint64(5), 15 // quick test (~60ms on x86-64)
if testing.Short() {
winc, einc = 5, 15 // quick test (~60ms on x86-64)
winc, einc = uint64(1), 1 // soak test (~1.5s on x86-64)
}
for _, sign := range "+-" {
@ -430,9 +430,9 @@ func TestFloat64Distribution(t *testing.T) {
9,
11,
}
var winc, einc = uint64(1), 1 // soak test (~75s on x86-64)
if testing.Short() {
winc, einc = 10, 500 // quick test (~12ms on x86-64)
var winc, einc = uint64(10), 500 // quick test (~12ms on x86-64)
if *long {
winc, einc = uint64(1), 1 // soak test (~75s on x86-64)
}
for _, sign := range "+-" {

6
src/math/big/ratconv_test.go
View file

@ -144,7 +144,7 @@ func TestFloatString(t *testing.T) {
}
// Test inputs to Rat.SetString. The prefix "long:" causes the test
// to be skipped in --test.short mode. (The threshold is about 500us.)
// to be skipped except in -long mode. (The threshold is about 500us.)
var float64inputs = []string{
// Constants plundered from strconv/testfp.txt.
@ -350,7 +350,7 @@ func isFinite(f float64) bool {
func TestFloat32SpecialCases(t *testing.T) {
for _, input := range float64inputs {
if strings.HasPrefix(input, "long:") {
if testing.Short() {
if !*long {
continue
}
input = input[len("long:"):]
@ -406,7 +406,7 @@ func TestFloat32SpecialCases(t *testing.T) {
func TestFloat64SpecialCases(t *testing.T) {
for _, input := range float64inputs {
if strings.HasPrefix(input, "long:") {
if testing.Short() {
if !*long {
continue
}
input = input[len("long:"):]